999 SERIES 1, 2, 3
Luffing Jib Raising Procedure
Luffing Jib No. 135 On Boom No. 82 or 22EL
Manitowoc Cranes, Inc. 8248-A
, 2011-10-19
Manitowoc, Wisconsin 54220 U.S.A. 5/10
Boom and luffing jib combinations in following tables require layout jack-knifing to a specified boom-to-luffing jib
angle for raising and lowering. Boom lengths shown with (a) require only the middle two sheaves in lower boom
point. All other sheaves must be removed from lower boom point. Boom lengths shown with (b) require lower
boom point to be removed. For jib lengths shown with (c), machine must be equipped with lowerworks jacking
cylinders when boom catwalks are attached.
WITH OR WITHOUT BOOM CATWALKS
999 SERIES 1
Maximum Boom and Luffing Jib Lengths Lifted Unassisted Using Jack-Knife Method
Without Intermediate Fall
Boom
Length
Over End of Blocked Crawlers
Over Side of Crawlers
Luffing Jib No. 135
Boom to
Luffing Jib
Angle
Luffing Jib No. 135
Boom to
Luffing Jib
Angle
Feet
Meters
Feet
Meters
Degrees
Feet
Meters
Degrees
100
30,5
—
—
—
160 - 170
48,8 - 51,8
90
110
33,5
—
—
—
130 - 170
39,6 - 51,8
90
120
36,6
150 - 170
45,7 - 51,8
90
100 - 170
30,5 - 51,8
90
130
39,6
130 - 170
39,6 - 51,8
90
80 - 170
24,4 - 51,8
90
140
42,7
100 - 170
30,5 - 51,8
90
70 - 150
21,3 - 45,7
90
—
—
—
160 - 170
48,8 - 51,8
60
150
45,7
80 - 170
24,4 - 51,8
90
(c) 80 - 90
24,4 - 27,4
60
160
48,8
70 - 170(c)
21,3 - 51,8
60
—
—
—
(b) 170
51,8
80 - 150(c)
24,4 - 45,7
60
—
—
—
Load blocks, hook and weight ball on ground until boom and luffing jib are erected. Intermediate fall must be
completely removed for 999 SERIES 1 application.
REFERENCE
ONLY!
